Write the number 9.9 x 10-5 in standard form.
2 answers:
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Let the amount of potting soil bought last week be 
We know that this week's amount is 32 lb
We also know that this week's amount is double the amount of last week's plus 6 lb
So we write the equation:
Solving this equation:
⇒ subtracting 6 from both sides
⇒ Dividing both sides by 2
The answer is: 13
We know that this week's amount is 32 lb
We also know that this week's amount is double the amount of last week's plus 6 lb
So we write the equation:
Solving this equation:
The answer is: 13